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<tr class="t-nv-h1"><td colspan="5"> Regular expressions</td></tr>
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<p>This header is part of the <a href="../memory.html" title="cpp/memory">dynamic memory management</a> library.
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<div id="toctitle"><h2>Contents</h2></div>
<ul>
<li class="toclevel-1 tocsection-1">
<a href="memory.html#Classes"><span class="tocnumber">1</span> <span class="toctext">Classes</span></a>
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<li class="toclevel-2"><a href="memory.html#Smart_pointers_categories"><span class="tocnumber">1.1</span> <span class="toctext">Smart pointers categories</span></a></li>
<li class="toclevel-2"><a href="memory.html#Smart_pointers_helper_classes"><span class="tocnumber">1.2</span> <span class="toctext">Smart pointers helper classes</span></a></li>
<li class="toclevel-2"><a href="memory.html#Allocators"><span class="tocnumber">1.3</span> <span class="toctext">Allocators</span></a></li>
<li class="toclevel-2"><a href="memory.html#Other"><span class="tocnumber">1.4</span> <span class="toctext">Other</span></a></li>
<li class="toclevel-2"><a href="memory.html#Forward_declaration"><span class="tocnumber">1.5</span> <span class="toctext">Forward declaration</span></a></li>
</ul>
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<li class="toclevel-1"><a href="memory.html#Constants"><span class="tocnumber">2</span> <span class="toctext">Constants</span></a></li>
<li class="toclevel-1 tocsection-2">
<a href="memory.html#Functions"><span class="tocnumber">3</span> <span class="toctext">Functions</span></a>
<ul>
<li class="toclevel-2"><a href="memory.html#Uninitialized_storage"><span class="tocnumber">3.1</span> <span class="toctext">Uninitialized storage</span></a></li>
<li class="toclevel-2"><a href="memory.html#Garbage_collector_support"><span class="tocnumber">3.2</span> <span class="toctext">Garbage collector support</span></a></li>
<li class="toclevel-2"><a href="memory.html#Miscellaneous"><span class="tocnumber">3.3</span> <span class="toctext">Miscellaneous</span></a></li>
<li class="toclevel-2"><a href="memory.html#Smart_pointer_non-member_operations"><span class="tocnumber">3.4</span> <span class="toctext">Smart pointer non-member operations</span></a></li>
<li class="toclevel-2"><a href="memory.html#Allocator_non-member_operations"><span class="tocnumber">3.5</span> <span class="toctext">Allocator non-member operations</span></a></li>
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<li class="toclevel-1 tocsection-3">
<a href="memory.html#Synopsis"><span class="tocnumber">4</span> <span class="toctext">Synopsis</span></a>
<ul>
<li class="toclevel-2 tocsection-4"><a href="memory.html#std%3A%3Apointer_traits"><span class="tocnumber">4.1</span> <span class="toctext"><span><span><span>std::<span>pointer_traits</span></span></span></span></span></a></li>
<li class="toclevel-2 tocsection-5"><a href="memory.html#std%3A%3Aallocator_traits"><span class="tocnumber">4.2</span> <span class="toctext"><span><span><span>std::<span>allocator_traits</span></span></span></span></span></a></li>
<li class="toclevel-2 tocsection-6"><a href="memory.html#std%3A%3Aallocator"><span class="tocnumber">4.3</span> <span class="toctext"><span><span><span>std::<span>allocator</span></span></span></span></span></a></li>
<li class="toclevel-2 tocsection-7"><a href="memory.html#std%3A%3Araw_storage_iterator"><span class="tocnumber">4.4</span> <span class="toctext"><span><span><span>std::<span>raw_storage_iterator</span></span></span></span></span></a></li>
<li class="toclevel-2 tocsection-8"><a href="memory.html#std%3A%3Adefault_delete"><span class="tocnumber">4.5</span> <span class="toctext"><span><span><span>std::<span>default_delete</span></span></span></span></span></a></li>
<li class="toclevel-2 tocsection-9"><a href="memory.html#std%3A%3Aunique_ptr"><span class="tocnumber">4.6</span> <span class="toctext"><span><span><span>std::<span>unique_ptr</span></span></span></span></span></a></li>
<li class="toclevel-2 tocsection-10"><a href="memory.html#std%3A%3Abad_weak_ptr"><span class="tocnumber">4.7</span> <span class="toctext"><span><span><span>std::<span>bad_weak_ptr</span></span></span></span></span></a></li>
<li class="toclevel-2 tocsection-11"><a href="memory.html#std%3A%3Ashared_ptr"><span class="tocnumber">4.8</span> <span class="toctext"><span><span><span>std::<span>shared_ptr</span></span></span></span></span></a></li>
<li class="toclevel-2 tocsection-12"><a href="memory.html#std%3A%3Aweak_ptr"><span class="tocnumber">4.9</span> <span class="toctext"><span><span><span>std::<span>weak_ptr</span></span></span></span></span></a></li>
<li class="toclevel-2 tocsection-13"><a href="memory.html#std%3A%3Aenable_shared_from_this"><span class="tocnumber">4.10</span> <span class="toctext"><span><span><span>std::<span>enable_shared_from_this</span></span></span></span></span></a></li>
</ul>
</li>
</ul>
</td></tr></table>
<h3>
<span class="editsection">[<a href="http%3A//en.cppreference.com/mwiki/index.php" title="Edit section: Classes">edit</a>]</span> <span class="mw-headline" id="Classes">Classes</span>
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<table class="t-dsc-begin">

<tr>
<td colspan="2"> <h5> <span class="mw-headline" id="Smart_pointers_categories"> Smart pointers categories </span>
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<tr class="t-dsc">
<td>  <div class="t-dsc-member-div">
<div><a href="../memory/unique_ptr.html" title="cpp/memory/unique ptr"> <span class="t-lines"><span>unique_ptr</span></span></a></div>
<div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div>
</div>
</td>
<td>   smart pointer with unique object ownership semantics  <br> <span class="t-mark">(class template)</span> 
</td>
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<tr class="t-dsc">
<td>  <div class="t-dsc-member-div">
<div><a href="../memory/shared_ptr.html" title="cpp/memory/shared ptr"> <span class="t-lines"><span>shared_ptr</span></span></a></div>
<div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div>
</div>
</td>
<td>   smart pointer with shared object ownership semantics  <br> <span class="t-mark">(class template)</span> 
</td>
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<tr class="t-dsc">
<td>  <div class="t-dsc-member-div">
<div><a href="../memory/weak_ptr.html" title="cpp/memory/weak ptr"> <span class="t-lines"><span>weak_ptr</span></span></a></div>
<div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div>
</div>
</td>
<td>   weak reference to an object managed by <span class="t-lc"><a href="../memory/shared_ptr.html" title="cpp/memory/shared ptr">std::shared_ptr</a></span>  <br> <span class="t-mark">(class template)</span> 
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<tr class="t-dsc">
<td>  <div class="t-dsc-member-div">
<div><a href="../memory/auto_ptr.html" title="cpp/memory/auto ptr"> <span class="t-lines"><span>auto_ptr</span></span></a></div>
<div><span class="t-lines"><span><span class="t-mark-rev t-until-cxx17">(until C++17)</span></span></span></div>
</div>
</td>
<td>   smart pointer with strict object ownership semantics  <br> <span class="t-mark">(class template)</span> 
</td>
</tr>

<tr>
<td colspan="2"> <h5> <span class="mw-headline" id="Smart_pointers_helper_classes">  Smart pointers helper classes </span>
</h5>
</td>
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<tr class="t-dsc">
<td>  <div class="t-dsc-member-div">
<div><a href="../memory/owner_less.html" title="cpp/memory/owner less"> <span class="t-lines"><span>owner_less</span></span></a></div>
<div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div>
</div>
</td>
<td>   provides mixed-type owner-based ordering of shared and weak pointers  <br> <span class="t-mark">(class template)</span> 
</td>
</tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div">
<div><a href="../memory/enable_shared_from_this.html" title="cpp/memory/enable shared from this"> <span class="t-lines"><span>enable_shared_from_this</span></span></a></div>
<div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div>
</div>
</td>
<td>   allows an object to create a <code>shared_ptr</code> referring to itself  <br> <span class="t-mark">(class template)</span> 
</td>
</tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div">
<div><a href="../memory/bad_weak_ptr.html" title="cpp/memory/bad weak ptr"> <span class="t-lines"><span>bad_weak_ptr</span></span></a></div>
<div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div>
</div>
</td>
<td>   exception thrown when accessing a <code>weak_ptr</code> which refers to already destroyed object  <br> <span class="t-mark">(class)</span> 
</td>
</tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div">
<div><a href="../memory/default_delete.html" title="cpp/memory/default delete"> <span class="t-lines"><span>default_delete</span></span></a></div>
<div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div>
</div>
</td>
<td>   default deleter for <code>unique_ptr</code>  <br> <span class="t-mark">(class template)</span> 
</td>
</tr>


<tr>
<td colspan="2"> <h5> <span class="mw-headline" id="Allocators">  Allocators </span>
</h5>
</td>
</tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../memory/allocator.html" title="cpp/memory/allocator"> <span class="t-lines"><span>allocator</span></span></a></div></div>
</td>
<td>   the default allocator  <br> <span class="t-mark">(class template)</span> 
</td>
</tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div">
<div><a href="../memory/allocator_traits.html" title="cpp/memory/allocator traits"> <span class="t-lines"><span>allocator_traits</span></span></a></div>
<div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div>
</div>
</td>
<td>   provides information about allocator types  <br> <span class="t-mark">(class template)</span> 
</td>
</tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div">
<div><a href="../memory/allocator_arg_t.html" title="cpp/memory/allocator arg t"> <span class="t-lines"><span>allocator_arg_t</span></span></a></div>
<div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div>
</div>
</td>
<td>   tag type used to select allocator-aware constructor overloads <br> <span class="t-mark">(class)</span> 
</td>
</tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div">
<div><a href="../memory/allocator_arg.html" title="cpp/memory/allocator arg"> <span class="t-lines"><span>allocator_arg</span></span></a></div>
<div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div>
</div>
</td>
<td>   an object of type <span class="t-lc"><a href="../memory/allocator_arg_t.html" title="cpp/memory/allocator arg t">std::allocator_arg_t</a></span> used to select allocator-aware constructors <br> <span class="t-mark">(constant)</span> 
</td>
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<tr class="t-dsc">
<td>  <div class="t-dsc-member-div">
<div><a href="../memory/uses_allocator.html" title="cpp/memory/uses allocator"> <span class="t-lines"><span>uses_allocator</span></span></a></div>
<div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div>
</div>
</td>
<td>   checks if the specified type supports uses-allocator construction  <br> <span class="t-mark">(class template)</span> 
</td>
</tr>


<tr>
<td colspan="2"> <h5> <span class="mw-headline" id="Other"> Other </span>
</h5>
</td>
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<tr class="t-dsc">
<td>  <div class="t-dsc-member-div">
<div><a href="../memory/gc/pointer_safety.html" title="cpp/memory/gc/pointer safety"> <span class="t-lines"><span>pointer_safety</span></span></a></div>
<div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div>
</div>
</td>
<td>   lists pointer safety models  <br> <span class="t-mark">(class)</span> 
</td>
</tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div">
<div><a href="../memory/pointer_traits.html" title="cpp/memory/pointer traits"> <span class="t-lines"><span>pointer_traits</span></span></a></div>
<div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div>
</div>
</td>
<td>   provides information about pointer-like types  <br> <span class="t-mark">(class template)</span> 
</td>
</tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div">
<div><a href="../memory/shared_ptr/hash.html" title="cpp/memory/shared ptr/hash"> <span class="t-lines"><span>std::hash<span class="t-dsc-small">&lt;std::shared_ptr&gt;</span></span></span></a></div>
<div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div>
</div>
</td>
<td>   hash support for <span class="t-lc"><a href="../memory/shared_ptr.html" title="cpp/memory/shared ptr">std::shared_ptr</a></span>  <br> <span class="t-mark">(class template specialization)</span> 
</td>
</tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div">
<div><a href="../memory/unique_ptr/hash.html" title="cpp/memory/unique ptr/hash"> <span class="t-lines"><span>std::hash<span class="t-dsc-small">&lt;std::unique_ptr&gt;</span></span></span></a></div>
<div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div>
</div>
</td>
<td>   hash support for <span class="t-lc"><a href="../memory/unique_ptr.html" title="cpp/memory/unique ptr">std::unique_ptr</a></span>  <br> <span class="t-mark">(class template specialization)</span> 
</td>
</tr>


<tr>
<td colspan="2"> <h5> <span class="mw-headline" id="Forward_declaration"> Forward declaration </span>
</h5>
</td>
</tr>

<tr class="t-dsc-header">
<td colspan="2"> <div>Defined in header <code>&lt;functional&gt;</code> </div>
</td>
</tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div">
<div><a href="../utility/hash.html" title="cpp/utility/hash"> <span class="t-lines"><span>hash</span></span></a></div>
<div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div>
</div>
</td>
<td>   hash function object  <br> <span class="t-mark">(class template)</span> 
</td>
</tr>


<tr>
<td colspan="2"> <h3> <span class="mw-headline" id="Constants">Constants</span>
</h3>
</td>
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<tr class="t-dsc">
<td>  <div class="t-dsc-member-div">
<div><a href="../memory/allocator_arg.html" title="cpp/memory/allocator arg"> <span class="t-lines"><span>allocator_arg</span></span></a></div>
<div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div>
</div>
</td>
<td>   an object of type <span class="t-lc"><a href="../memory/allocator_arg_t.html" title="cpp/memory/allocator arg t">std::allocator_arg_t</a></span> used to select allocator-aware constructors <br> <span class="t-mark">(constant)</span> 
</td>
</tr>

</table>
<h3>
<span class="editsection">[<a href="http%3A//en.cppreference.com/mwiki/index.php" title="Edit section: Functions">edit</a>]</span> <span class="mw-headline" id="Functions">Functions</span>
</h3>
<table class="t-dsc-begin">


<tr>
<td colspan="2"> <h5> <span class="mw-headline" id="Uninitialized_storage"> Uninitialized storage </span>
</h5>
</td>
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<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../memory/uninitialized_copy.html" title="cpp/memory/uninitialized copy"> <span class="t-lines"><span>uninitialized_copy</span></span></a></div></div>
</td>
<td>   copies a range of objects to an uninitialized area of memory <br> <span class="t-mark">(function template)</span> 
</td>
</tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div">
<div><a href="../memory/uninitialized_copy_n.html" title="cpp/memory/uninitialized copy n"> <span class="t-lines"><span>uninitialized_copy_n</span></span></a></div>
<div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div>
</div>
</td>
<td>   copies a number of objects to an uninitialized area of memory  <br> <span class="t-mark">(function template)</span> 
</td>
</tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../memory/uninitialized_fill.html" title="cpp/memory/uninitialized fill"> <span class="t-lines"><span>uninitialized_fill</span></span></a></div></div>
</td>
<td>   copies an object to an uninitialized area of memory <br> <span class="t-mark">(function template)</span> 
</td>
</tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../memory/uninitialized_fill_n.html" title="cpp/memory/uninitialized fill n"> <span class="t-lines"><span>uninitialized_fill_n</span></span></a></div></div>
</td>
<td>   copies an object to an uninitialized area of memory <br> <span class="t-mark">(function template)</span> 
</td>
</tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../memory/raw_storage_iterator.html" title="cpp/memory/raw storage iterator"> <span class="t-lines"><span>raw_storage_iterator</span></span></a></div></div>
</td>
<td>   an iterator that allows standard algorithms to store results in uninitialized memory <br> <span class="t-mark">(class template)</span> 
</td>
</tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../memory/get_temporary_buffer.html" title="cpp/memory/get temporary buffer"> <span class="t-lines"><span>get_temporary_buffer</span></span></a></div></div>
</td>
<td>   obtains uninitialized storage  <br> <span class="t-mark">(function template)</span> 
</td>
</tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../memory/return_temporary_buffer.html" title="cpp/memory/return temporary buffer"> <span class="t-lines"><span>return_temporary_buffer</span></span></a></div></div>
</td>
<td>   frees uninitialized storage  <br> <span class="t-mark">(function template)</span> 
</td>
</tr>


<tr>
<td colspan="2"> <h5> <span class="mw-headline" id="Garbage_collector_support">  Garbage collector support </span>
</h5>
</td>
</tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div">
<div><a href="../memory/gc/declare_reachable.html" title="cpp/memory/gc/declare reachable"> <span class="t-lines"><span>declare_reachable</span></span></a></div>
<div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div>
</div>
</td>
<td>   declares that an object can not be recycled   <br> <span class="t-mark">(function)</span> 
</td>
</tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div">
<div><a href="../memory/gc/undeclare_reachable.html" title="cpp/memory/gc/undeclare reachable"> <span class="t-lines"><span>undeclare_reachable</span></span></a></div>
<div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div>
</div>
</td>
<td>   declares that an object can be recycled  <br> <span class="t-mark">(function template)</span> 
</td>
</tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div">
<div><a href="../memory/gc/declare_no_pointers.html" title="cpp/memory/gc/declare no pointers"> <span class="t-lines"><span>declare_no_pointers</span></span></a></div>
<div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div>
</div>
</td>
<td>   declares that a memory area does not contain traceable pointers  <br> <span class="t-mark">(function)</span> 
</td>
</tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div">
<div><a href="../memory/gc/undeclare_no_pointers.html" title="cpp/memory/gc/undeclare no pointers"> <span class="t-lines"><span>undeclare_no_pointers</span></span></a></div>
<div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div>
</div>
</td>
<td>   cancels the effect of <span class="t-lc"><a href="../memory/gc/declare_no_pointers.html" title="cpp/memory/gc/declare no pointers">std::declare_no_pointers</a></span>  <br> <span class="t-mark">(function)</span> 
</td>
</tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div">
<div><a href="../memory/gc/get_pointer_safety.html" title="cpp/memory/gc/get pointer safety"> <span class="t-lines"><span>get_pointer_safety</span></span></a></div>
<div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div>
</div>
</td>
<td>   returns the current pointer safety model  <br> <span class="t-mark">(function)</span> 
</td>
</tr>


<tr>
<td colspan="2"> <h5> <span class="mw-headline" id="Miscellaneous">  Miscellaneous </span>
</h5>
</td>
</tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div">
<div><a href="../memory/addressof.html" title="cpp/memory/addressof"> <span class="t-lines"><span>addressof</span></span></a></div>
<div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div>
</div>
</td>
<td>   obtains actual address of an object, even if the <i>&amp;</i> operator is overloaded  <br> <span class="t-mark">(function template)</span> 
</td>
</tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div">
<div><a href="../memory/align.html" title="cpp/memory/align"> <span class="t-lines"><span>align</span></span></a></div>
<div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div>
</div>
</td>
<td>   aligns a pointer in a buffer  <br> <span class="t-mark">(function)</span> 
</td>
</tr>


<tr>
<td colspan="2"> <h5> <span class="mw-headline" id="Smart_pointer_non-member_operations"> Smart pointer non-member operations </span>
</h5>
</td>
</tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div">
<div><a href="../memory/unique_ptr/make_unique.html" title="cpp/memory/unique ptr/make unique"> <span class="t-lines"><span>make_unique</span></span></a></div>
<div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx14">(C++14)</span></span></span></div>
</div>
</td>
<td>   creates a unique pointer that manages a new object  <br> <span class="t-mark">(function template)</span> 
</td>
</tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../memory/shared_ptr/make_shared.html" title="cpp/memory/shared ptr/make shared"> <span class="t-lines"><span>make_shared</span></span></a></div></div>
</td>
<td>   creates a shared pointer that manages a new object <br> <span class="t-mark">(function template)</span> 
</td>
</tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../memory/shared_ptr/allocate_shared.html" title="cpp/memory/shared ptr/allocate shared"> <span class="t-lines"><span>allocate_shared</span></span></a></div></div>
</td>
<td>   creates a shared pointer that manages a new object allocated using an allocator <br> <span class="t-mark">(function template)</span> 
</td>
</tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../memory/shared_ptr/pointer_cast.html" title="cpp/memory/shared ptr/pointer cast"> <span class="t-lines"><span>static_pointer_cast</span><span>dynamic_pointer_cast</span><span>const_pointer_cast</span></span></a></div></div>
</td>
<td>   applies <a href="../language/static_cast.html" title="cpp/language/static cast"><tt>static_cast</tt></a>, <a href="../language/dynamic_cast.html" title="cpp/language/dynamic cast"><tt>dynamic_cast</tt></a> or <a href="../language/const_cast.html" title="cpp/language/const cast"><tt>const_cast</tt></a> to the type of the managed object <br> <span class="t-mark">(function template)</span> 
</td>
</tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../memory/shared_ptr/get_deleter.html" title="cpp/memory/shared ptr/get deleter"> <span class="t-lines"><span>get_deleter</span></span></a></div></div>
</td>
<td>   returns the deleter of specified type, if owned  <br> <span class="t-mark">(function template)</span> 
</td>
</tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../memory/shared_ptr/operator_cmp.html" title="cpp/memory/shared ptr/operator cmp"> <span class="t-lines"><span>operator==</span><span>operator!=</span><span>operator&lt;</span><span>operator&lt;=</span><span>operator&gt;</span><span>operator&gt;=</span></span></a></div></div>
</td>
<td>   compares with another <code>shared_ptr</code> or with <span class="t-c"><span class="mw-geshi cpp source-cpp">nullptr</span></span>  <br> <span class="t-mark">(function template)</span> 
</td>
</tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../memory/shared_ptr/operator_ltlt.html" title="cpp/memory/shared ptr/operator ltlt"> <span class="t-lines"><span>operator&lt;&lt;</span></span></a></div></div>
</td>
<td>   outputs the value of the managed pointer to an output stream <br> <span class="t-mark">(function template)</span> 
</td>
</tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div">
<div><a href="../memory/shared_ptr/swap2.html" title="cpp/memory/shared ptr/swap2"> <span class="t-lines"><span>std::swap<span class="t-dsc-small">(std::shared_ptr)</span></span></span></a></div>
<div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div>
</div>
</td>
<td>   specializes the <span class="t-lc"><a href="../algorithm/swap.html" title="cpp/algorithm/swap">std::swap</a></span> algorithm  <br> <span class="t-mark">(function template)</span> 
</td>
</tr>
</table>
<table class="t-dsc-begin">


<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../memory/shared_ptr/atomic.html" title="cpp/memory/shared ptr/atomic"> <span class="t-lines"><span>std::atomic_is_lock_free<span class="t-dsc-small">(std::shared_ptr)</span></span><span>std::atomic_load<span class="t-dsc-small">(std::shared_ptr)</span></span><span>std::atomic_load_explicit<span class="t-dsc-small">(std::shared_ptr)</span></span><span>std::atomic_store<span class="t-dsc-small">(std::shared_ptr)</span></span><span>std::atomic_store_explicit<span class="t-dsc-small">(std::shared_ptr)</span></span><span>std::atomic_exchange<span class="t-dsc-small">(std::shared_ptr)</span></span><span>std::atomic_exchange_explicit<span class="t-dsc-small">(std::shared_ptr)</span></span><span>std::atomic_compare_exchange_weak<span class="t-dsc-small">(std::shared_ptr)</span></span><span>std::atomic_compare_exchange_strong<span class="t-dsc-small">(std::shared_ptr)</span></span><span>std::atomic_compare_exchange_weak_explicit<span class="t-dsc-small">(std::shared_ptr)</span></span><span>std::atomic_compare_exchange_strong_explicit<span class="t-dsc-small">(std::shared_ptr)</span></span></span></a></div></div>
</td>
<td>   specializes atomic operations  <br> <span class="t-mark">(function template)</span> 
</td>
</tr>
</table>
<table class="t-dsc-begin">



<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../memory/unique_ptr/operator_cmp.html" title="cpp/memory/unique ptr/operator cmp"> <span class="t-lines"><span>operator==</span><span>operator!=</span><span>operator&lt;</span><span>operator&lt;=</span><span>operator&gt;</span><span>operator&gt;=</span></span></a></div></div>
</td>
<td>   compares to another <code>unique_ptr</code> or with <span class="t-c"><span class="mw-geshi cpp source-cpp">nullptr</span></span>  <br> <span class="t-mark">(function template)</span> 
</td>
</tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div">
<div><a href="../memory/unique_ptr/swap2.html" title="cpp/memory/unique ptr/swap2"> <span class="t-lines"><span>std::swap<span class="t-dsc-small">(std::unique_ptr)</span></span></span></a></div>
<div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div>
</div>
</td>
<td>   specializes the <span class="t-lc"><a href="../algorithm/swap.html" title="cpp/algorithm/swap">std::swap</a></span> algorithm  <br> <span class="t-mark">(function template)</span> 
</td>
</tr>


<tr class="t-dsc">
<td>  <div class="t-dsc-member-div">
<div><a href="../memory/weak_ptr/swap2.html" title="cpp/memory/weak ptr/swap2"> <span class="t-lines"><span>std::swap<span class="t-dsc-small">(std::weak_ptr)</span></span></span></a></div>
<div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div>
</div>
</td>
<td>   specializes the <span class="t-lc"><a href="../algorithm/swap.html" title="cpp/algorithm/swap">std::swap</a></span> algorithm  <br> <span class="t-mark">(function template)</span> 
</td>
</tr>


<tr>
<td colspan="2"> <h5> <span class="mw-headline" id="Allocator_non-member_operations"> Allocator non-member operations </span>
</h5>
</td>
</tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../memory/allocator/operator_cmp.html" title="cpp/memory/allocator/operator cmp"> <span class="t-lines"><span>operator==</span><span>operator!=</span></span></a></div></div>
</td>
<td>  compares two allocator instances <br> <span class="t-mark">(public member function of <code>std::allocator</code>)</span> 
</td>
</tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../memory/scoped_allocator_adaptor/operator_cmp.html" title="cpp/memory/scoped allocator adaptor/operator cmp"> <span class="t-lines"><span>operator==</span><span>operator!=</span></span></a></div></div>
</td>
<td>  compares two scoped_allocator_adaptor instances <br> <span class="t-mark">(public member function of <code>std::scoped_allocator_adaptor</code>)</span> 
</td>
</tr>

</table>
<h3>
<span class="editsection">[<a href="http%3A//en.cppreference.com/mwiki/index.php" title="Edit section: Synopsis">edit</a>]</span> <span class="mw-headline" id="Synopsis">Synopsis</span>
</h3>
<div dir="ltr" class="mw-geshi" style="text-align: left;"><div class="cpp source-cpp"><pre class="de1"><span class="kw1">namespace</span> std <span class="br0">{</span>
    <span class="co1">// pointer traits</span>
    <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> Ptr<span class="sy1">&gt;</span> <span class="kw1">struct</span> pointer_traits<span class="sy4">;</span>
    <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span> <span class="kw1">struct</span> pointer_traits<span class="sy1">&lt;</span>T<span class="sy2">*</span><span class="sy1">&gt;</span><span class="sy4">;</span>
 
    <span class="co1">// pointer safety</span>
    <span class="kw2">enum</span> <span class="kw1">class</span> pointer_safety <span class="br0">{</span> relaxed, preferred, strict <span class="br0">}</span><span class="sy4">;</span>
    <span class="kw4">void</span> declare_reachable<span class="br0">(</span><span class="kw4">void</span> <span class="sy2">*</span>p<span class="br0">)</span><span class="sy4">;</span>
    <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span> T <span class="sy2">*</span>undeclare_reachable<span class="br0">(</span>T <span class="sy2">*</span>p<span class="br0">)</span><span class="sy4">;</span>
    <span class="kw4">void</span> declare_no_pointers<span class="br0">(</span><span class="kw4">char</span> <span class="sy2">*</span>p, size_t n<span class="br0">)</span><span class="sy4">;</span>
    <span class="kw4">void</span> undeclare_no_pointers<span class="br0">(</span><span class="kw4">char</span> <span class="sy2">*</span>p, size_t n<span class="br0">)</span><span class="sy4">;</span>
    pointer_safety get_pointer_safety<span class="br0">(</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
 
    <span class="co1">// pointer alignment function</span>
    <span class="kw4">void</span> <span class="sy2">*</span>align<span class="br0">(</span><a href="../types/size_t.html"><span class="kw100">std::<span class="me2">size_t</span></span></a> alignment, <a href="../types/size_t.html"><span class="kw100">std::<span class="me2">size_t</span></span></a> size,
                <span class="kw4">void</span> <span class="sy2">*</span><span class="sy3">&amp;</span>ptr, <a href="../types/size_t.html"><span class="kw100">std::<span class="me2">size_t</span></span></a><span class="sy3">&amp;</span> space<span class="br0">)</span><span class="sy4">;</span>
 
    <span class="co1">// allocator argument tag</span>
    <span class="kw1">struct</span> allocator_arg_t <span class="br0">{</span> <span class="br0">}</span><span class="sy4">;</span>
    <span class="kw4">constexpr</span> allocator_arg_t allocator_arg <span class="sy1">=</span> allocator_arg_t<span class="br0">(</span><span class="br0">)</span><span class="sy4">;</span>
 
    <span class="co1">// uses_allocator</span>
    <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> T, <span class="kw1">class</span> Alloc<span class="sy1">&gt;</span> <span class="kw1">struct</span> uses_allocator<span class="sy4">;</span>
 
    <span class="co1">// allocator traits</span>
    <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> Alloc<span class="sy1">&gt;</span> <span class="kw1">struct</span> allocator_traits<span class="sy4">;</span>
 
    <span class="co1">// the default allocator:</span>
    <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span> <span class="kw1">class</span> allocator<span class="sy4">;</span>
    <span class="kw1">template</span> <span class="sy1">&lt;&gt;</span> <span class="kw1">class</span> allocator<span class="sy1">&lt;</span><span class="kw4">void</span><span class="sy1">&gt;</span><span class="sy4">;</span>
    <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> T, <span class="kw1">class</span> U<span class="sy1">&gt;</span>
        <span class="kw4">bool</span> operator<span class="sy1">==</span><span class="br0">(</span><span class="kw4">const</span> allocator<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy3">&amp;</span>, <span class="kw4">const</span> allocator<span class="sy1">&lt;</span>U<span class="sy1">&gt;</span><span class="sy3">&amp;</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> T, <span class="kw1">class</span> U<span class="sy1">&gt;</span>
        <span class="kw4">bool</span> operator<span class="sy3">!</span><span class="sy1">=</span><span class="br0">(</span><span class="kw4">const</span> allocator<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy3">&amp;</span>, <span class="kw4">const</span> allocator<span class="sy1">&lt;</span>U<span class="sy1">&gt;</span><span class="sy3">&amp;</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
 
    <span class="co1">// raw storage iterator:</span>
    <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> OutputIterator, <span class="kw1">class</span> T<span class="sy1">&gt;</span> <span class="kw1">class</span> raw_storage_iterator<span class="sy4">;</span>
 
    <span class="co1">// temporary buffers:</span>
    <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span>
        pair<span class="sy1">&lt;</span>T<span class="sy2">*</span>,ptrdiff_t<span class="sy1">&gt;</span> get_temporary_buffer<span class="br0">(</span>ptrdiff_t n<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span>
        <span class="kw4">void</span> return_temporary_buffer<span class="br0">(</span>T<span class="sy2">*</span> p<span class="br0">)</span><span class="sy4">;</span>
 
    <span class="co1">// specialized algorithms:</span>
    <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span> T<span class="sy2">*</span> addressof<span class="br0">(</span>T<span class="sy3">&amp;</span> r<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> InputIterator, <span class="kw1">class</span> ForwardIterator<span class="sy1">&gt;</span>
        ForwardIterator uninitialized_copy<span class="br0">(</span>InputIterator first, InputIterator last,
                                           ForwardIterator result<span class="br0">)</span><span class="sy4">;</span>
    <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> InputIterator, <span class="kw1">class</span> Size, <span class="kw1">class</span> ForwardIterator<span class="sy1">&gt;</span>
        ForwardIterator uninitialized_copy_n<span class="br0">(</span>InputIterator first, Size n,
                                             ForwardIterator result<span class="br0">)</span><span class="sy4">;</span>
    <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> ForwardIterator, <span class="kw1">class</span> T<span class="sy1">&gt;</span>
        <span class="kw4">void</span> uninitialized_fill<span class="br0">(</span>ForwardIterator first, ForwardIterator last,
                                <span class="kw4">const</span> T<span class="sy3">&amp;</span> x<span class="br0">)</span><span class="sy4">;</span>
    <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> ForwardIterator, <span class="kw1">class</span> Size, <span class="kw1">class</span> T<span class="sy1">&gt;</span>
        ForwardIterator uninitialized_fill_n<span class="br0">(</span>ForwardIterator first, Size n, <span class="kw4">const</span> T<span class="sy3">&amp;</span> x<span class="br0">)</span><span class="sy4">;</span>
    <span class="co1">// class template unique_ptr:</span>
    <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span> <span class="kw1">class</span> default_delete<span class="sy4">;</span>
    <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span> <span class="kw1">class</span> default_delete<span class="sy1">&lt;</span>T<span class="br0">[</span><span class="br0">]</span><span class="sy1">&gt;</span><span class="sy4">;</span>
    <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> T, <span class="kw1">class</span> D <span class="sy1">=</span> default_delete<span class="sy1">&lt;</span>T<span class="sy1">&gt;&gt;</span> <span class="kw1">class</span> unique_ptr<span class="sy4">;</span>
    <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> T, <span class="kw1">class</span> D<span class="sy1">&gt;</span> <span class="kw1">class</span> unique_ptr<span class="sy1">&lt;</span>T<span class="br0">[</span><span class="br0">]</span>, D<span class="sy1">&gt;</span><span class="sy4">;</span>
 
    <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> T1, <span class="kw1">class</span> D1, <span class="kw1">class</span> T2, <span class="kw1">class</span> D2<span class="sy1">&gt;</span>
        <span class="kw4">bool</span> operator<span class="sy1">==</span><span class="br0">(</span><span class="kw4">const</span> unique_ptr<span class="sy1">&lt;</span>T1, D1<span class="sy1">&gt;</span><span class="sy3">&amp;</span> x, <span class="kw4">const</span> unique_ptr<span class="sy1">&lt;</span>T2, D2<span class="sy1">&gt;</span><span class="sy3">&amp;</span> y<span class="br0">)</span><span class="sy4">;</span>
    <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> T1, <span class="kw1">class</span> D1, <span class="kw1">class</span> T2, <span class="kw1">class</span> D2<span class="sy1">&gt;</span>
        <span class="kw4">bool</span> operator<span class="sy3">!</span><span class="sy1">=</span><span class="br0">(</span><span class="kw4">const</span> unique_ptr<span class="sy1">&lt;</span>T1, D1<span class="sy1">&gt;</span><span class="sy3">&amp;</span> x, <span class="kw4">const</span> unique_ptr<span class="sy1">&lt;</span>T2, D2<span class="sy1">&gt;</span><span class="sy3">&amp;</span> y<span class="br0">)</span><span class="sy4">;</span>
    <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> T1, <span class="kw1">class</span> D1, <span class="kw1">class</span> T2, <span class="kw1">class</span> D2<span class="sy1">&gt;</span>
        <span class="kw4">bool</span> operator<span class="sy1">&lt;</span><span class="br0">(</span><span class="kw4">const</span> unique_ptr<span class="sy1">&lt;</span>T1, D1<span class="sy1">&gt;</span><span class="sy3">&amp;</span> x, <span class="kw4">const</span> unique_ptr<span class="sy1">&lt;</span>T2, D2<span class="sy1">&gt;</span><span class="sy3">&amp;</span> y<span class="br0">)</span><span class="sy4">;</span>
    <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> T1, <span class="kw1">class</span> D1, <span class="kw1">class</span> T2, <span class="kw1">class</span> D2<span class="sy1">&gt;</span>
        <span class="kw4">bool</span> operator<span class="sy1">&lt;=</span><span class="br0">(</span><span class="kw4">const</span> unique_ptr<span class="sy1">&lt;</span>T1, D1<span class="sy1">&gt;</span><span class="sy3">&amp;</span> x, <span class="kw4">const</span> unique_ptr<span class="sy1">&lt;</span>T2, D2<span class="sy1">&gt;</span><span class="sy3">&amp;</span> y<span class="br0">)</span><span class="sy4">;</span>
    <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> T1, <span class="kw1">class</span> D1, <span class="kw1">class</span> T2, <span class="kw1">class</span> D2<span class="sy1">&gt;</span>
        <span class="kw4">bool</span> operator<span class="sy1">&gt;</span><span class="br0">(</span><span class="kw4">const</span> unique_ptr<span class="sy1">&lt;</span>T1, D1<span class="sy1">&gt;</span><span class="sy3">&amp;</span> x, <span class="kw4">const</span> unique_ptr<span class="sy1">&lt;</span>T2, D2<span class="sy1">&gt;</span><span class="sy3">&amp;</span> y<span class="br0">)</span><span class="sy4">;</span>
    <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> T1, <span class="kw1">class</span> D1, <span class="kw1">class</span> T2, <span class="kw1">class</span> D2<span class="sy1">&gt;</span>
        <span class="kw4">bool</span> operator<span class="sy1">&gt;=</span><span class="br0">(</span><span class="kw4">const</span> unique_ptr<span class="sy1">&lt;</span>T1, D1<span class="sy1">&gt;</span><span class="sy3">&amp;</span> x, <span class="kw4">const</span> unique_ptr<span class="sy1">&lt;</span>T2, D2<span class="sy1">&gt;</span><span class="sy3">&amp;</span> y<span class="br0">)</span><span class="sy4">;</span>
 
    <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> T, <span class="kw1">class</span> D<span class="sy1">&gt;</span>
        <span class="kw4">bool</span> operator<span class="sy1">==</span><span class="br0">(</span><span class="kw4">const</span> unique_ptr<span class="sy1">&lt;</span>T, D<span class="sy1">&gt;</span><span class="sy3">&amp;</span> x, nullptr_t<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> T, <span class="kw1">class</span> D<span class="sy1">&gt;</span>
        <span class="kw4">bool</span> operator<span class="sy1">==</span><span class="br0">(</span>nullptr_t, <span class="kw4">const</span> unique_ptr<span class="sy1">&lt;</span>T, D<span class="sy1">&gt;</span><span class="sy3">&amp;</span> y<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> T, <span class="kw1">class</span> D<span class="sy1">&gt;</span>
        <span class="kw4">bool</span> operator<span class="sy3">!</span><span class="sy1">=</span><span class="br0">(</span><span class="kw4">const</span> unique_ptr<span class="sy1">&lt;</span>T, D<span class="sy1">&gt;</span><span class="sy3">&amp;</span> x, nullptr_t<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> T, <span class="kw1">class</span> D<span class="sy1">&gt;</span>
        <span class="kw4">bool</span> operator<span class="sy3">!</span><span class="sy1">=</span><span class="br0">(</span>nullptr_t, <span class="kw4">const</span> unique_ptr<span class="sy1">&lt;</span>T, D<span class="sy1">&gt;</span><span class="sy3">&amp;</span> y<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
 
    <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> T, <span class="kw1">class</span> D<span class="sy1">&gt;</span>
        <span class="kw4">bool</span> operator<span class="sy1">&lt;</span><span class="br0">(</span><span class="kw4">const</span> unique_ptr<span class="sy1">&lt;</span>T, D<span class="sy1">&gt;</span><span class="sy3">&amp;</span> x, nullptr_t<span class="br0">)</span><span class="sy4">;</span>
    <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> T, <span class="kw1">class</span> D<span class="sy1">&gt;</span>
        <span class="kw4">bool</span> operator<span class="sy1">&lt;</span><span class="br0">(</span>nullptr_t, <span class="kw4">const</span> unique_ptr<span class="sy1">&lt;</span>T, D<span class="sy1">&gt;</span><span class="sy3">&amp;</span> y<span class="br0">)</span><span class="sy4">;</span>
    <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> T, <span class="kw1">class</span> D<span class="sy1">&gt;</span>
        <span class="kw4">bool</span> operator<span class="sy1">&lt;=</span><span class="br0">(</span><span class="kw4">const</span> unique_ptr<span class="sy1">&lt;</span>T, D<span class="sy1">&gt;</span><span class="sy3">&amp;</span> x, nullptr_t<span class="br0">)</span><span class="sy4">;</span>
    <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> T, <span class="kw1">class</span> D<span class="sy1">&gt;</span>
        <span class="kw4">bool</span> operator<span class="sy1">&lt;=</span><span class="br0">(</span>nullptr_t, <span class="kw4">const</span> unique_ptr<span class="sy1">&lt;</span>T, D<span class="sy1">&gt;</span><span class="sy3">&amp;</span> y<span class="br0">)</span><span class="sy4">;</span>
    <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> T, <span class="kw1">class</span> D<span class="sy1">&gt;</span>
        <span class="kw4">bool</span> operator<span class="sy1">&gt;</span><span class="br0">(</span><span class="kw4">const</span> unique_ptr<span class="sy1">&lt;</span>T, D<span class="sy1">&gt;</span><span class="sy3">&amp;</span> x, nullptr_t<span class="br0">)</span><span class="sy4">;</span>
    <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> T, <span class="kw1">class</span> D<span class="sy1">&gt;</span>
        <span class="kw4">bool</span> operator<span class="sy1">&gt;</span><span class="br0">(</span>nullptr_t, <span class="kw4">const</span> unique_ptr<span class="sy1">&lt;</span>T, D<span class="sy1">&gt;</span><span class="sy3">&amp;</span> y<span class="br0">)</span><span class="sy4">;</span>
    <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> T, <span class="kw1">class</span> D<span class="sy1">&gt;</span>
        <span class="kw4">bool</span> operator<span class="sy1">&gt;=</span><span class="br0">(</span><span class="kw4">const</span> unique_ptr<span class="sy1">&lt;</span>T, D<span class="sy1">&gt;</span><span class="sy3">&amp;</span> x, nullptr_t<span class="br0">)</span><span class="sy4">;</span>
    <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> T, <span class="kw1">class</span> D<span class="sy1">&gt;</span>
        <span class="kw4">bool</span> operator<span class="sy1">&gt;=</span><span class="br0">(</span>nullptr_t, <span class="kw4">const</span> unique_ptr<span class="sy1">&lt;</span>T, D<span class="sy1">&gt;</span><span class="sy3">&amp;</span> y<span class="br0">)</span><span class="sy4">;</span>
 
    <span class="co1">// class bad_weak_ptr:</span>
    <span class="kw1">class</span> bad_weak_ptr<span class="sy4">;</span>
 
    <span class="co1">// class template shared_ptr:</span>
    <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span> <span class="kw1">class</span> shared_ptr<span class="sy4">;</span>
 
    <span class="co1">// shared_ptr comparisons:</span>
    <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T, <span class="kw1">class</span> U<span class="sy1">&gt;</span>
        <span class="kw4">bool</span> operator<span class="sy1">==</span><span class="br0">(</span>shared_ptr<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span> <span class="kw4">const</span><span class="sy3">&amp;</span> a, shared_ptr<span class="sy1">&lt;</span>U<span class="sy1">&gt;</span> <span class="kw4">const</span><span class="sy3">&amp;</span> b<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T, <span class="kw1">class</span> U<span class="sy1">&gt;</span>
        <span class="kw4">bool</span> operator<span class="sy3">!</span><span class="sy1">=</span><span class="br0">(</span>shared_ptr<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span> <span class="kw4">const</span><span class="sy3">&amp;</span> a, shared_ptr<span class="sy1">&lt;</span>U<span class="sy1">&gt;</span> <span class="kw4">const</span><span class="sy3">&amp;</span> b<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T, <span class="kw1">class</span> U<span class="sy1">&gt;</span>
        <span class="kw4">bool</span> operator<span class="sy1">&lt;</span><span class="br0">(</span>shared_ptr<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span> <span class="kw4">const</span><span class="sy3">&amp;</span> a, shared_ptr<span class="sy1">&lt;</span>U<span class="sy1">&gt;</span> <span class="kw4">const</span><span class="sy3">&amp;</span> b<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T, <span class="kw1">class</span> U<span class="sy1">&gt;</span>
        <span class="kw4">bool</span> operator<span class="sy1">&gt;</span><span class="br0">(</span>shared_ptr<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span> <span class="kw4">const</span><span class="sy3">&amp;</span> a, shared_ptr<span class="sy1">&lt;</span>U<span class="sy1">&gt;</span> <span class="kw4">const</span><span class="sy3">&amp;</span> b<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T, <span class="kw1">class</span> U<span class="sy1">&gt;</span>
        <span class="kw4">bool</span> operator<span class="sy1">&lt;=</span><span class="br0">(</span>shared_ptr<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span> <span class="kw4">const</span><span class="sy3">&amp;</span> a, shared_ptr<span class="sy1">&lt;</span>U<span class="sy1">&gt;</span> <span class="kw4">const</span><span class="sy3">&amp;</span> b<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T, <span class="kw1">class</span> U<span class="sy1">&gt;</span>
        <span class="kw4">bool</span> operator<span class="sy1">&gt;=</span><span class="br0">(</span>shared_ptr<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span> <span class="kw4">const</span><span class="sy3">&amp;</span> a, shared_ptr<span class="sy1">&lt;</span>U<span class="sy1">&gt;</span> <span class="kw4">const</span><span class="sy3">&amp;</span> b<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
 
    <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span>
        <span class="kw4">bool</span> operator<span class="sy1">==</span><span class="br0">(</span><span class="kw4">const</span> shared_ptr<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy3">&amp;</span> x, nullptr_t<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span>
        <span class="kw4">bool</span> operator<span class="sy1">==</span><span class="br0">(</span>nullptr_t, <span class="kw4">const</span> shared_ptr<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy3">&amp;</span> y<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span>
        <span class="kw4">bool</span> operator<span class="sy3">!</span><span class="sy1">=</span><span class="br0">(</span><span class="kw4">const</span> shared_ptr<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy3">&amp;</span> x, nullptr_t<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span>
        <span class="kw4">bool</span> operator<span class="sy3">!</span><span class="sy1">=</span><span class="br0">(</span>nullptr_t, <span class="kw4">const</span> shared_ptr<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy3">&amp;</span> y<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span>
        <span class="kw4">bool</span> operator<span class="sy1">&lt;</span><span class="br0">(</span><span class="kw4">const</span> shared_ptr<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy3">&amp;</span> x, nullptr_t<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span>
        <span class="kw4">bool</span> operator<span class="sy1">&lt;</span><span class="br0">(</span>nullptr_t, <span class="kw4">const</span> shared_ptr<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy3">&amp;</span> y<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span>
        <span class="kw4">bool</span> operator<span class="sy1">&lt;=</span><span class="br0">(</span><span class="kw4">const</span> shared_ptr<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy3">&amp;</span> x, nullptr_t<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span>
        <span class="kw4">bool</span> operator<span class="sy1">&lt;=</span><span class="br0">(</span>nullptr_t, <span class="kw4">const</span> shared_ptr<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy3">&amp;</span> y<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span>
        <span class="kw4">bool</span> operator<span class="sy1">&gt;</span><span class="br0">(</span><span class="kw4">const</span> shared_ptr<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy3">&amp;</span> x, nullptr_t<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span>
    <span class="kw4">bool</span> operator<span class="sy1">&gt;</span><span class="br0">(</span>nullptr_t, <span class="kw4">const</span> shared_ptr<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy3">&amp;</span> y<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span>
        <span class="kw4">bool</span> operator<span class="sy1">&gt;=</span><span class="br0">(</span><span class="kw4">const</span> shared_ptr<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy3">&amp;</span> x, nullptr_t<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span>
        <span class="kw4">bool</span> operator<span class="sy1">&gt;=</span><span class="br0">(</span>nullptr_t, <span class="kw4">const</span> shared_ptr<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy3">&amp;</span> y<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
 
    <span class="co1">// shared_ptr specialized algorithms:</span>
    <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span> <span class="kw4">void</span> swap<span class="br0">(</span>shared_ptr<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy3">&amp;</span> a, shared_ptr<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy3">&amp;</span> b<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
 
    <span class="co1">// shared_ptr casts:</span>
    <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T, <span class="kw1">class</span> U<span class="sy1">&gt;</span>
        shared_ptr<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span> static_pointer_cast<span class="br0">(</span>shared_ptr<span class="sy1">&lt;</span>U<span class="sy1">&gt;</span> <span class="kw4">const</span><span class="sy3">&amp;</span> r<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T, <span class="kw1">class</span> U<span class="sy1">&gt;</span>
        shared_ptr<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span> dynamic_pointer_cast<span class="br0">(</span>shared_ptr<span class="sy1">&lt;</span>U<span class="sy1">&gt;</span> <span class="kw4">const</span><span class="sy3">&amp;</span> r<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T, <span class="kw1">class</span> U<span class="sy1">&gt;</span>
        shared_ptr<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span> const_pointer_cast<span class="br0">(</span>shared_ptr<span class="sy1">&lt;</span>U<span class="sy1">&gt;</span> <span class="kw4">const</span><span class="sy3">&amp;</span> r<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
 
    <span class="co1">// shared_ptr get_deleter:</span>
    <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> D, <span class="kw1">class</span> T<span class="sy1">&gt;</span> D<span class="sy2">*</span> get_deleter<span class="br0">(</span>shared_ptr<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span> <span class="kw4">const</span><span class="sy3">&amp;</span> p<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
 
    <span class="co1">// shared_ptr I/O:</span>
    <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> E, <span class="kw1">class</span> T, <span class="kw1">class</span> Y<span class="sy1">&gt;</span>
        basic_ostream<span class="sy1">&lt;</span>E, T<span class="sy1">&gt;</span><span class="sy3">&amp;</span> operator<span class="sy1">&lt;&lt;</span> <span class="br0">(</span>basic_ostream<span class="sy1">&lt;</span>E, T<span class="sy1">&gt;</span><span class="sy3">&amp;</span> os, shared_ptr<span class="sy1">&lt;</span>Y<span class="sy1">&gt;</span> <span class="kw4">const</span><span class="sy3">&amp;</span> p<span class="br0">)</span><span class="sy4">;</span>
 
    <span class="co1">// class template weak_ptr:</span>
    <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span> <span class="kw1">class</span> weak_ptr<span class="sy4">;</span>
 
    <span class="co1">// weak_ptr specialized algorithms:</span>
    <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span> <span class="kw4">void</span> swap<span class="br0">(</span>weak_ptr<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy3">&amp;</span> a, weak_ptr<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy3">&amp;</span> b<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
 
    <span class="co1">// class template owner_less:</span>
    <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span> <span class="kw1">class</span> owner_less<span class="sy4">;</span>
 
    <span class="co1">// class template enable_shared_from_this:</span>
    <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span> <span class="kw1">class</span> enable_shared_from_this<span class="sy4">;</span>
 
    <span class="co1">// shared_ptr atomic access:</span>
    <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span>
        <span class="kw4">bool</span> atomic_is_lock_free<span class="br0">(</span><span class="kw4">const</span> shared_ptr<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy2">*</span> p<span class="br0">)</span><span class="sy4">;</span>
    <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span>
        shared_ptr<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span> atomic_load<span class="br0">(</span><span class="kw4">const</span> shared_ptr<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy2">*</span> p<span class="br0">)</span><span class="sy4">;</span>
    <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span>
        shared_ptr<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span> atomic_load_explicit<span class="br0">(</span><span class="kw4">const</span> shared_ptr<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy2">*</span> p, memory_order mo<span class="br0">)</span><span class="sy4">;</span>
    <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span>
        <span class="kw4">void</span> atomic_store<span class="br0">(</span>shared_ptr<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy2">*</span> p, shared_ptr<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span> r<span class="br0">)</span><span class="sy4">;</span>
    <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span>
        <span class="kw4">void</span> atomic_store_explicit<span class="br0">(</span>shared_ptr<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy2">*</span> p, shared_ptr<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span> r, memory_order mo<span class="br0">)</span><span class="sy4">;</span>
    <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span>
        shared_ptr<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span> atomic_exchange<span class="br0">(</span>shared_ptr<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy2">*</span> p, shared_ptr<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span> r<span class="br0">)</span><span class="sy4">;</span>
    <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span>
        shared_ptr<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span> atomic_exchange_explicit<span class="br0">(</span>shared_ptr<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy2">*</span> p, shared_ptr<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span> r,
                                                memory_order mo<span class="br0">)</span><span class="sy4">;</span>
    <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span>
        <span class="kw4">bool</span> atomic_compare_exchange_weak<span class="br0">(</span>
            shared_ptr<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy2">*</span> p, shared_ptr<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy2">*</span> v, shared_ptr<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span>  w<span class="br0">)</span><span class="sy4">;</span>
    <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span>
        <span class="kw4">bool</span> atomic_compare_exchange_strong<span class="br0">(</span>
            shared_ptr<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy2">*</span> p, shared_ptr<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy2">*</span> v, shared_ptr<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span>  w<span class="br0">)</span><span class="sy4">;</span>
    <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span>
        <span class="kw4">bool</span> atomic_compare_exchange_weak_explicit<span class="br0">(</span>
            shared_ptr<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy2">*</span> p, shared_ptr<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy2">*</span> v, shared_ptr<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span> w,
            memory_order success, memory_order failure<span class="br0">)</span><span class="sy4">;</span>
    <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span>
        <span class="kw4">bool</span> atomic_compare_exchange_strong_explicit<span class="br0">(</span>
            shared_ptr<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy2">*</span> p, shared_ptr<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy2">*</span> v, shared_ptr<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span> w,
            memory_order success, memory_order failure<span class="br0">)</span><span class="sy4">;</span>
 
    <span class="co1">//  hash support</span>
    <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span> <span class="kw1">struct</span> hash<span class="sy4">;</span>
    <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> T, <span class="kw1">class</span> D<span class="sy1">&gt;</span> <span class="kw1">struct</span> hash<span class="sy1">&lt;</span>unique_ptr<span class="sy1">&lt;</span>T, D<span class="sy1">&gt;</span> <span class="sy1">&gt;</span><span class="sy4">;</span>
    <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span> <span class="kw1">struct</span> hash<span class="sy1">&lt;</span>shared_ptr<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span> <span class="sy1">&gt;</span><span class="sy4">;</span>
 
    <span class="co1">// auto_ptr (deprecated)</span>
    <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> X<span class="sy1">&gt;</span> <span class="kw1">class</span> auto_ptr<span class="sy4">;</span>
<span class="br0">}</span></pre></div></div>
<p><br>
</p>
<h4>
<span class="editsection">[<a href="http%3A//en.cppreference.com/mwiki/index.php" title="Edit section: std::pointer traits">edit</a>]</span> <span class="mw-headline" id="std::pointer_traits"><span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="../memory/pointer_traits.html"><span class="kw604">std::<span class="me2">pointer_traits</span></span></a></span></span></span>
</h4>
<div dir="ltr" class="mw-geshi" style="text-align: left;"><div class="cpp source-cpp"><pre class="de1"><span class="kw1">namespace</span> std <span class="br0">{</span>
    <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> Ptr<span class="sy1">&gt;</span> <span class="kw1">struct</span> pointer_traits <span class="br0">{</span>
        <span class="kw1">typedef</span> Ptr         pointer<span class="sy4">;</span>
        <span class="kw1">typedef</span> <span class="coMULTI">/*depends*/</span> element_type<span class="sy4">;</span>
        <span class="kw1">typedef</span> <span class="coMULTI">/*depends*/</span> difference_type<span class="sy4">;</span>
 
        <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> U<span class="sy1">&gt;</span> <span class="kw1">using</span> rebind <span class="sy1">=</span> <span class="coMULTI">/*depends*/</span><span class="sy4">;</span>
 
        <span class="kw4">static</span> pointer pointer_to<span class="br0">(</span>element_type<span class="sy3">&amp;</span> r<span class="br0">)</span><span class="sy4">;</span>
    <span class="br0">}</span><span class="sy4">;</span>
    <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span> <span class="kw1">struct</span> pointer_traits<span class="sy1">&lt;</span>T<span class="sy2">*</span><span class="sy1">&gt;</span> <span class="br0">{</span>
        <span class="kw1">typedef</span> T<span class="sy2">*</span>          pointer<span class="sy4">;</span>
        <span class="kw1">typedef</span> T           element_type<span class="sy4">;</span>
        <span class="kw1">typedef</span> ptrdiff_t   difference_type<span class="sy4">;</span>
 
        <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> U<span class="sy1">&gt;</span> <span class="kw1">using</span> rebind <span class="sy1">=</span> U<span class="sy2">*</span><span class="sy4">;</span>
 
        <span class="kw4">static</span> pointer pointer_to<span class="br0">(</span>element_type<span class="sy3">&amp;</span> r<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="br0">}</span><span class="sy4">;</span>
<span class="br0">}</span></pre></div></div>
<h4>
<span class="editsection">[<a href="http%3A//en.cppreference.com/mwiki/index.php" title="Edit section: std::allocator traits">edit</a>]</span> <span class="mw-headline" id="std::allocator_traits"><span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="../memory/allocator_traits.html"><span class="kw569">std::<span class="me2">allocator_traits</span></span></a></span></span></span>
</h4>
<div dir="ltr" class="mw-geshi" style="text-align: left;"><div class="cpp source-cpp"><pre class="de1"><span class="kw1">namespace</span> std <span class="br0">{</span>
    <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> Alloc<span class="sy1">&gt;</span> <span class="kw1">struct</span> allocator_traits <span class="br0">{</span>
        <span class="kw1">typedef</span> Alloc allocator_type<span class="sy4">;</span>
 
        <span class="kw1">typedef</span> <span class="kw1">typename</span> Alloc<span class="sy4">::</span><span class="me2">value_type</span> value_type<span class="sy4">;</span>
 
        <span class="kw1">typedef</span> <span class="coMULTI">/*depends*/</span> pointer<span class="sy4">;</span>
        <span class="kw1">typedef</span> <span class="coMULTI">/*depends*/</span> const_pointer<span class="sy4">;</span>
        <span class="kw1">typedef</span> <span class="coMULTI">/*depends*/</span> void_pointer<span class="sy4">;</span>
        <span class="kw1">typedef</span> <span class="coMULTI">/*depends*/</span> const_void_pointer<span class="sy4">;</span>
 
        <span class="kw1">typedef</span> <span class="coMULTI">/*depends*/</span> difference_type<span class="sy4">;</span>
        <span class="kw1">typedef</span> <span class="coMULTI">/*depends*/</span> size_type<span class="sy4">;</span>
 
        <span class="kw1">typedef</span> <span class="coMULTI">/*depends*/</span> propagate_on_container_copy_assignment<span class="sy4">;</span>
        <span class="kw1">typedef</span> <span class="coMULTI">/*depends*/</span> propagate_on_container_move_assignment<span class="sy4">;</span>
        <span class="kw1">typedef</span> <span class="coMULTI">/*depends*/</span> propagate_on_container_swap<span class="sy4">;</span>
        <span class="kw1">typedef</span> <span class="coMULTI">/*depends*/</span> is_always_equal<span class="sy4">;</span>
 
        <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span> <span class="kw1">using</span> rebind_alloc <span class="sy1">=</span> <span class="coMULTI">/*depends*/</span> <span class="sy4">;</span>
        <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span> <span class="kw1">using</span> rebind_traits <span class="sy1">=</span> allocator_traits<span class="sy1">&lt;</span>rebind_alloc<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span> <span class="sy1">&gt;</span><span class="sy4">;</span>
 
        <span class="kw4">static</span> pointer allocate<span class="br0">(</span>Alloc<span class="sy3">&amp;</span> a, size_type n<span class="br0">)</span><span class="sy4">;</span>
        <span class="kw4">static</span> pointer allocate<span class="br0">(</span>Alloc<span class="sy3">&amp;</span> a, size_type n, const_void_pointer hint<span class="br0">)</span><span class="sy4">;</span>
 
        <span class="kw4">static</span> <span class="kw4">void</span> deallocate<span class="br0">(</span>Alloc<span class="sy3">&amp;</span> a, pointer p, size_type n<span class="br0">)</span><span class="sy4">;</span>
 
        <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> T, <span class="kw1">class</span>... <span class="me1">Args</span><span class="sy1">&gt;</span>
            <span class="kw4">static</span> <span class="kw4">void</span> construct<span class="br0">(</span>Alloc<span class="sy3">&amp;</span> a, T<span class="sy2">*</span> p, Args<span class="sy3">&amp;&amp;</span>... <span class="me1">args</span><span class="br0">)</span><span class="sy4">;</span>
 
        <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span>
            <span class="kw4">static</span> <span class="kw4">void</span> destroy<span class="br0">(</span>Alloc<span class="sy3">&amp;</span> a, T<span class="sy2">*</span> p<span class="br0">)</span><span class="sy4">;</span>
 
        <span class="kw4">static</span> size_type max_size<span class="br0">(</span><span class="kw4">const</span> Alloc<span class="sy3">&amp;</span> a<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
 
        <span class="kw4">static</span> Alloc select_on_container_copy_construction<span class="br0">(</span><span class="kw4">const</span> Alloc<span class="sy3">&amp;</span> rhs<span class="br0">)</span><span class="sy4">;</span>
    <span class="br0">}</span><span class="sy4">;</span>
<span class="br0">}</span></pre></div></div>
<h4>
<span class="editsection">[<a href="http%3A//en.cppreference.com/mwiki/index.php" title="Edit section: std::allocator">edit</a>]</span> <span class="mw-headline" id="std::allocator"><span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="../memory/allocator.html"><span class="kw568">std::<span class="me2">allocator</span></span></a></span></span></span>
</h4>
<div dir="ltr" class="mw-geshi" style="text-align: left;"><div class="cpp source-cpp"><pre class="de1"><span class="kw1">namespace</span> std <span class="br0">{</span>
    <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span> <span class="kw1">class</span> allocator<span class="sy4">;</span>
    <span class="co1">// specialize for void:</span>
    <span class="kw1">template</span> <span class="sy1">&lt;&gt;</span> <span class="kw1">class</span> allocator<span class="sy1">&lt;</span><span class="kw4">void</span><span class="sy1">&gt;</span> <span class="br0">{</span>
    <span class="kw1">public</span><span class="sy4">:</span>
        <span class="kw1">typedef</span> <span class="kw4">void</span><span class="sy2">*</span>           pointer<span class="sy4">;</span>
        <span class="kw1">typedef</span> <span class="kw4">const</span> <span class="kw4">void</span><span class="sy2">*</span>     const_pointer<span class="sy4">;</span>
        <span class="co1">// reference-to-void members are impossible.</span>
        <span class="kw1">typedef</span> <span class="kw4">void</span>            value_type<span class="sy4">;</span>
        <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> U<span class="sy1">&gt;</span> <span class="kw1">struct</span> rebind <span class="br0">{</span> <span class="kw1">typedef</span> allocator<span class="sy1">&lt;</span>U<span class="sy1">&gt;</span> other<span class="sy4">;</span> <span class="br0">}</span><span class="sy4">;</span>
    <span class="br0">}</span><span class="sy4">;</span>
    <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span> <span class="kw1">class</span> allocator <span class="br0">{</span>
    <span class="kw1">public</span><span class="sy4">:</span>
        <span class="kw1">typedef</span> size_t          size_type<span class="sy4">;</span>
        <span class="kw1">typedef</span> ptrdiff_t       difference_type<span class="sy4">;</span>
        <span class="kw1">typedef</span> T<span class="sy2">*</span>              pointer<span class="sy4">;</span>
        <span class="kw1">typedef</span> <span class="kw4">const</span> T<span class="sy2">*</span>        const_pointer<span class="sy4">;</span>
        <span class="kw1">typedef</span> T<span class="sy3">&amp;</span>              reference<span class="sy4">;</span>
        <span class="kw1">typedef</span> <span class="kw4">const</span> T<span class="sy3">&amp;</span>        const_reference<span class="sy4">;</span>
        <span class="kw1">typedef</span> T               value_type<span class="sy4">;</span>
        <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> U<span class="sy1">&gt;</span> <span class="kw1">struct</span> rebind <span class="br0">{</span> <span class="kw1">typedef</span> allocator<span class="sy1">&lt;</span>U<span class="sy1">&gt;</span> other<span class="sy4">;</span> <span class="br0">}</span><span class="sy4">;</span>
        <span class="kw1">typedef</span> true_type       propagate_on_container_move_assignment<span class="sy4">;</span>
        <span class="kw1">typedef</span> true_type       is_always_equal<span class="sy4">;</span>
 
        allocator<span class="br0">(</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
        allocator<span class="br0">(</span><span class="kw4">const</span> allocator<span class="sy3">&amp;</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
        <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> U<span class="sy1">&gt;</span> allocator<span class="br0">(</span><span class="kw4">const</span> allocator<span class="sy1">&lt;</span>U<span class="sy1">&gt;</span><span class="sy3">&amp;</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
        ~allocator<span class="br0">(</span><span class="br0">)</span><span class="sy4">;</span>
 
        pointer address<span class="br0">(</span>reference x<span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
        const_pointer address<span class="br0">(</span>const_reference x<span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
 
        pointer allocate<span class="br0">(</span>
            size_type, allocator<span class="sy1">&lt;</span><span class="kw4">void</span><span class="sy1">&gt;</span><span class="sy4">::</span><span class="me2">const_pointer</span> hint <span class="sy1">=</span> <span class="nu0">0</span><span class="br0">)</span><span class="sy4">;</span>
        <span class="kw4">void</span> deallocate<span class="br0">(</span>pointer p, size_type n<span class="br0">)</span><span class="sy4">;</span>
        size_type max_size<span class="br0">(</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
 
        <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> U, <span class="kw1">class</span>... <span class="me1">Args</span><span class="sy1">&gt;</span>
            <span class="kw4">void</span> construct<span class="br0">(</span>U<span class="sy2">*</span> p, Args<span class="sy3">&amp;&amp;</span>... <span class="me1">args</span><span class="br0">)</span><span class="sy4">;</span>
        <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> U<span class="sy1">&gt;</span>
            <span class="kw4">void</span> destroy<span class="br0">(</span>U<span class="sy2">*</span> p<span class="br0">)</span><span class="sy4">;</span>
    <span class="br0">}</span><span class="sy4">;</span>
<span class="br0">}</span></pre></div></div>
<h4>
<span class="editsection">[<a href="http%3A//en.cppreference.com/mwiki/index.php" title="Edit section: std::raw storage iterator">edit</a>]</span> <span class="mw-headline" id="std::raw_storage_iterator"><span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="../memory/raw_storage_iterator.html"><span class="kw578">std::<span class="me2">raw_storage_iterator</span></span></a></span></span></span>
</h4>
<div dir="ltr" class="mw-geshi" style="text-align: left;"><div class="cpp source-cpp"><pre class="de1"><span class="kw1">namespace</span> std <span class="br0">{</span>
    <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> OutputIterator, <span class="kw1">class</span> T<span class="sy1">&gt;</span>
    <span class="kw1">class</span> raw_storage_iterator
        <span class="sy4">:</span> <span class="kw1">public</span> iterator<span class="sy1">&lt;</span>output_iterator_tag,<span class="kw4">void</span>,<span class="kw4">void</span>,<span class="kw4">void</span>,<span class="kw4">void</span><span class="sy1">&gt;</span> <span class="br0">{</span>
    <span class="kw1">public</span><span class="sy4">:</span>
        <span class="kw1">explicit</span> raw_storage_iterator<span class="br0">(</span>OutputIterator x<span class="br0">)</span><span class="sy4">;</span>
 
        raw_storage_iterator<span class="sy3">&amp;</span>    operator<span class="sy2">*</span><span class="br0">(</span><span class="br0">)</span><span class="sy4">;</span>
        raw_storage_iterator<span class="sy3">&amp;</span>    operator<span class="sy1">=</span><span class="br0">(</span><span class="kw4">const</span> T<span class="sy3">&amp;</span> element<span class="br0">)</span><span class="sy4">;</span>
        raw_storage_iterator<span class="sy3">&amp;</span>    operator<span class="sy2">++</span><span class="br0">(</span><span class="br0">)</span><span class="sy4">;</span>
        raw_storage_iterator    operator<span class="sy2">++</span><span class="br0">(</span><span class="kw4">int</span><span class="br0">)</span><span class="sy4">;</span>
    <span class="br0">}</span><span class="sy4">;</span>
<span class="br0">}</span></pre></div></div>
<h4>
<span class="editsection">[<a href="http%3A//en.cppreference.com/mwiki/index.php" title="Edit section: std::default delete">edit</a>]</span> <span class="mw-headline" id="std::default_delete"><span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="../memory/default_delete.html"><span class="kw594">std::<span class="me2">default_delete</span></span></a></span></span></span>
</h4>
<div dir="ltr" class="mw-geshi" style="text-align: left;"><div class="cpp source-cpp"><pre class="de1"><span class="kw1">namespace</span> std <span class="br0">{</span>
    <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span> <span class="kw1">struct</span> default_delete <span class="br0">{</span>
        <span class="kw4">constexpr</span> default_delete<span class="br0">(</span><span class="br0">)</span> <span class="kw1">noexcept</span> <span class="sy1">=</span> <span class="kw1">default</span><span class="sy4">;</span>
        <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> U<span class="sy1">&gt;</span> default_delete<span class="br0">(</span><span class="kw4">const</span> default_delete<span class="sy1">&lt;</span>U<span class="sy1">&gt;</span><span class="sy3">&amp;</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
        <span class="kw4">void</span> operator<span class="br0">(</span><span class="br0">)</span><span class="br0">(</span>T<span class="sy2">*</span><span class="br0">)</span> <span class="kw4">const</span><span class="sy4">;</span>
    <span class="br0">}</span><span class="sy4">;</span>
 
    <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span> <span class="kw1">struct</span> default_delete<span class="sy1">&lt;</span>T<span class="br0">[</span><span class="br0">]</span><span class="sy1">&gt;</span> <span class="br0">{</span>
        <span class="kw4">constexpr</span> default_delete<span class="br0">(</span><span class="br0">)</span> <span class="kw1">noexcept</span> <span class="sy1">=</span> <span class="kw1">default</span><span class="sy4">;</span>
        <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> U<span class="sy1">&gt;</span> default_delete<span class="br0">(</span><span class="kw4">const</span> default_delete<span class="sy1">&lt;</span>U<span class="br0">[</span><span class="br0">]</span><span class="sy1">&gt;</span><span class="sy3">&amp;</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
        <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> U<span class="sy1">&gt;</span> <span class="kw4">void</span> operator<span class="br0">(</span><span class="br0">)</span><span class="br0">(</span>U<span class="sy2">*</span> ptr<span class="br0">)</span> <span class="kw4">const</span><span class="sy4">;</span>
    <span class="br0">}</span><span class="sy4">;</span>
<span class="br0">}</span></pre></div></div>
<h4>
<span class="editsection">[<a href="http%3A//en.cppreference.com/mwiki/index.php" title="Edit section: std::unique ptr">edit</a>]</span> <span class="mw-headline" id="std::unique_ptr"><span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="../memory/unique_ptr.html"><span class="kw581">std::<span class="me2">unique_ptr</span></span></a></span></span></span>
</h4>
<div dir="ltr" class="mw-geshi" style="text-align: left;"><div class="cpp source-cpp"><pre class="de1"><span class="kw1">namespace</span> std <span class="br0">{</span>
    <span class="co1">//  unique_ptr for single objects</span>
    <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> T, <span class="kw1">class</span> D <span class="sy1">=</span> default_delete<span class="sy1">&lt;</span>T<span class="sy1">&gt;&gt;</span> <span class="kw1">class</span> unique_ptr <span class="br0">{</span>
    <span class="kw1">public</span><span class="sy4">:</span>
        <span class="kw1">typedef</span> <span class="coMULTI">/*depends*/</span> pointer<span class="sy4">;</span>
        <span class="kw1">typedef</span> T element_type<span class="sy4">;</span>
        <span class="kw1">typedef</span> D deleter_type<span class="sy4">;</span>
 
        <span class="co1">// 20.8.1.2.1, constructors</span>
        <span class="kw4">constexpr</span> unique_ptr<span class="br0">(</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
        <span class="kw1">explicit</span> unique_ptr<span class="br0">(</span>pointer p<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
        unique_ptr<span class="br0">(</span>pointer p, <span class="coMULTI">/*depends*/</span> d1<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
        unique_ptr<span class="br0">(</span>pointer p, <span class="coMULTI">/*depends*/</span> d2<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
        unique_ptr<span class="br0">(</span>unique_ptr<span class="sy3">&amp;&amp;</span> u<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
        <span class="kw4">constexpr</span> unique_ptr<span class="br0">(</span>nullptr_t<span class="br0">)</span> <span class="kw1">noexcept</span>
            <span class="sy4">:</span> unique_ptr<span class="br0">(</span><span class="br0">)</span> <span class="br0">{</span> <span class="br0">}</span>
        <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> U, <span class="kw1">class</span> E<span class="sy1">&gt;</span>
            unique_ptr<span class="br0">(</span>unique_ptr<span class="sy1">&lt;</span>U, E<span class="sy1">&gt;</span><span class="sy3">&amp;&amp;</span> u<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
 
        <span class="co1">// 20.8.1.2.2, destructor</span>
        ~unique_ptr<span class="br0">(</span><span class="br0">)</span><span class="sy4">;</span>
 
        <span class="co1">// 20.8.1.2.3, assignment</span>
        unique_ptr<span class="sy3">&amp;</span> operator<span class="sy1">=</span><span class="br0">(</span>unique_ptr<span class="sy3">&amp;&amp;</span> u<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
        <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> U, <span class="kw1">class</span> E<span class="sy1">&gt;</span> unique_ptr<span class="sy3">&amp;</span> operator<span class="sy1">=</span><span class="br0">(</span>unique_ptr<span class="sy1">&lt;</span>U, E<span class="sy1">&gt;</span><span class="sy3">&amp;&amp;</span> u<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
        unique_ptr<span class="sy3">&amp;</span> operator<span class="sy1">=</span><span class="br0">(</span>nullptr_t<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
 
        <span class="co1">// 20.8.1.2.4, observers</span>
        add_lvalue_reference_t<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span> operator<span class="sy2">*</span><span class="br0">(</span><span class="br0">)</span> <span class="kw4">const</span><span class="sy4">;</span>
        pointer operator<span class="sy2">-</span><span class="sy1">&gt;</span><span class="br0">(</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
        pointer get<span class="br0">(</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
        deleter_type<span class="sy3">&amp;</span> get_deleter<span class="br0">(</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
        <span class="kw4">const</span> deleter_type<span class="sy3">&amp;</span> get_deleter<span class="br0">(</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
        <span class="kw1">explicit</span> operator <span class="kw4">bool</span><span class="br0">(</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
 
        <span class="co1">// 20.8.1.2.5 modifiers</span>
        pointer release<span class="br0">(</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
        <span class="kw4">void</span> reset<span class="br0">(</span>pointer p <span class="sy1">=</span> pointer<span class="br0">(</span><span class="br0">)</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
        <span class="kw4">void</span> swap<span class="br0">(</span>unique_ptr<span class="sy3">&amp;</span> u<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
 
        <span class="co1">// disable copy from lvalue</span>
        unique_ptr<span class="br0">(</span><span class="kw4">const</span> unique_ptr<span class="sy3">&amp;</span><span class="br0">)</span> <span class="sy1">=</span> delete<span class="sy4">;</span>
        unique_ptr<span class="sy3">&amp;</span> operator<span class="sy1">=</span><span class="br0">(</span><span class="kw4">const</span> unique_ptr<span class="sy3">&amp;</span><span class="br0">)</span> <span class="sy1">=</span> delete<span class="sy4">;</span>
    <span class="br0">}</span><span class="sy4">;</span>
 
    <span class="co1">// unique_ptr for array objects with a runtime length</span>
    <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> T, <span class="kw1">class</span> D<span class="sy1">&gt;</span> <span class="kw1">class</span> unique_ptr<span class="sy1">&lt;</span>T<span class="br0">[</span><span class="br0">]</span>, D<span class="sy1">&gt;</span> <span class="br0">{</span>
    <span class="kw1">public</span><span class="sy4">:</span>
        <span class="kw1">typedef</span> see below pointer<span class="sy4">;</span>
        <span class="kw1">typedef</span> T element_type<span class="sy4">;</span>
        <span class="kw1">typedef</span> D deleter_type<span class="sy4">;</span>
 
        <span class="co1">// 20.8.1.3.1, constructors</span>
        <span class="kw4">constexpr</span> unique_ptr<span class="br0">(</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
        <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> U<span class="sy1">&gt;</span> <span class="kw1">explicit</span> unique_ptr<span class="br0">(</span>U p<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
        <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> U<span class="sy1">&gt;</span> unique_ptr<span class="br0">(</span>U p, see below d<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
        <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> U<span class="sy1">&gt;</span> unique_ptr<span class="br0">(</span>U p, see below d<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
        unique_ptr<span class="br0">(</span>unique_ptr<span class="sy3">&amp;&amp;</span> u<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
        <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> U, <span class="kw1">class</span> E<span class="sy1">&gt;</span>
            unique_ptr<span class="br0">(</span>unique_ptr<span class="sy1">&lt;</span>U, E<span class="sy1">&gt;</span><span class="sy3">&amp;&amp;</span> u<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
        <span class="kw4">constexpr</span> unique_ptr<span class="br0">(</span>nullptr_t<span class="br0">)</span> <span class="kw1">noexcept</span> <span class="sy4">:</span> unique_ptr<span class="br0">(</span><span class="br0">)</span> <span class="br0">{</span> <span class="br0">}</span>
 
        <span class="co1">// destructor</span>
        ~unique_ptr<span class="br0">(</span><span class="br0">)</span><span class="sy4">;</span>
 
        <span class="co1">// assignment</span>
        unique_ptr<span class="sy3">&amp;</span> operator<span class="sy1">=</span><span class="br0">(</span>unique_ptr<span class="sy3">&amp;&amp;</span> u<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
        <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> U, <span class="kw1">class</span> E<span class="sy1">&gt;</span>
            unique_ptr<span class="sy3">&amp;</span> operator<span class="sy1">=</span><span class="br0">(</span>unique_ptr<span class="sy1">&lt;</span>U, E<span class="sy1">&gt;</span><span class="sy3">&amp;&amp;</span> u<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
        unique_ptr<span class="sy3">&amp;</span> operator<span class="sy1">=</span><span class="br0">(</span>nullptr_t<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
 
        <span class="co1">// 20.8.1.3.3, observers</span>
        T<span class="sy3">&amp;</span> operator<span class="br0">[</span><span class="br0">]</span><span class="br0">(</span>size_t i<span class="br0">)</span> <span class="kw4">const</span><span class="sy4">;</span>
        pointer get<span class="br0">(</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
        deleter_type<span class="sy3">&amp;</span> get_deleter<span class="br0">(</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
        <span class="kw4">const</span> deleter_type<span class="sy3">&amp;</span> get_deleter<span class="br0">(</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
        <span class="kw1">explicit</span> operator <span class="kw4">bool</span><span class="br0">(</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
 
        <span class="co1">// 20.8.1.3.4 modifiers</span>
        pointer release<span class="br0">(</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
        <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> U<span class="sy1">&gt;</span> <span class="kw4">void</span> reset<span class="br0">(</span>U p<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
        <span class="kw4">void</span> reset<span class="br0">(</span>nullptr_t <span class="sy1">=</span> nullptr<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
        <span class="kw4">void</span> swap<span class="br0">(</span>unique_ptr<span class="sy3">&amp;</span> u<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
 
        <span class="co1">// disable copy from lvalue</span>
        unique_ptr<span class="br0">(</span><span class="kw4">const</span> unique_ptr<span class="sy3">&amp;</span><span class="br0">)</span> <span class="sy1">=</span> delete<span class="sy4">;</span>
        unique_ptr<span class="sy3">&amp;</span> operator<span class="sy1">=</span><span class="br0">(</span><span class="kw4">const</span> unique_ptr<span class="sy3">&amp;</span><span class="br0">)</span> <span class="sy1">=</span> delete<span class="sy4">;</span>
    <span class="br0">}</span><span class="sy4">;</span>
 
<span class="br0">}</span></pre></div></div>
<h4>
<span class="editsection">[<a href="http%3A//en.cppreference.com/mwiki/index.php" title="Edit section: std::bad weak ptr">edit</a>]</span> <span class="mw-headline" id="std::bad_weak_ptr"><span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="../memory/bad_weak_ptr.html"><span class="kw593">std::<span class="me2">bad_weak_ptr</span></span></a></span></span></span>
</h4>
<div dir="ltr" class="mw-geshi" style="text-align: left;"><div class="cpp source-cpp"><pre class="de1"><span class="kw1">namespace</span> std <span class="br0">{</span>
    <span class="kw1">class</span> bad_weak_ptr<span class="sy4">:</span> <span class="kw1">public</span> <a href="../error/exception.html"><span class="kw611">std::<span class="me2">exception</span></span></a> <span class="br0">{</span>
    <span class="kw1">public</span><span class="sy4">:</span>
        bad_weak_ptr<span class="br0">(</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="br0">}</span><span class="sy4">;</span>
<span class="br0">}</span> <span class="co1">// namespace std</span></pre></div></div>
<h4>
<span class="editsection">[<a href="http%3A//en.cppreference.com/mwiki/index.php" title="Edit section: std::shared ptr">edit</a>]</span> <span class="mw-headline" id="std::shared_ptr"><span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="../memory/shared_ptr.html"><span class="kw582">std::<span class="me2">shared_ptr</span></span></a></span></span></span>
</h4>
<div dir="ltr" class="mw-geshi" style="text-align: left;"><div class="cpp source-cpp"><pre class="de1"><span class="kw1">namespace</span> std <span class="br0">{</span>
    <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span> <span class="kw1">class</span> shared_ptr <span class="br0">{</span>
    <span class="kw1">public</span><span class="sy4">:</span>
        <span class="kw1">typedef</span> T element_type<span class="sy4">;</span>
 
        <span class="co1">// 20.8.2.2.1, constructors:</span>
        <span class="kw4">constexpr</span> shared_ptr<span class="br0">(</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
        <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> Y<span class="sy1">&gt;</span> <span class="kw1">explicit</span> shared_ptr<span class="br0">(</span>Y<span class="sy2">*</span> p<span class="br0">)</span><span class="sy4">;</span>
        <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> Y, <span class="kw1">class</span> D<span class="sy1">&gt;</span> shared_ptr<span class="br0">(</span>Y<span class="sy2">*</span> p, D d<span class="br0">)</span><span class="sy4">;</span>
        <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> Y, <span class="kw1">class</span> D, <span class="kw1">class</span> A<span class="sy1">&gt;</span> shared_ptr<span class="br0">(</span>Y<span class="sy2">*</span> p, D d, A a<span class="br0">)</span><span class="sy4">;</span>
        <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> D<span class="sy1">&gt;</span> shared_ptr<span class="br0">(</span>nullptr_t p, D d<span class="br0">)</span><span class="sy4">;</span>
        <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> D, <span class="kw1">class</span> A<span class="sy1">&gt;</span> shared_ptr<span class="br0">(</span>nullptr_t p, D d, A a<span class="br0">)</span><span class="sy4">;</span>
        <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> Y<span class="sy1">&gt;</span> shared_ptr<span class="br0">(</span><span class="kw4">const</span> shared_ptr<span class="sy1">&lt;</span>Y<span class="sy1">&gt;</span><span class="sy3">&amp;</span> r, T<span class="sy2">*</span> p<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
        shared_ptr<span class="br0">(</span><span class="kw4">const</span> shared_ptr<span class="sy3">&amp;</span> r<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
        <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> Y<span class="sy1">&gt;</span> shared_ptr<span class="br0">(</span><span class="kw4">const</span> shared_ptr<span class="sy1">&lt;</span>Y<span class="sy1">&gt;</span><span class="sy3">&amp;</span> r<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
        shared_ptr<span class="br0">(</span>shared_ptr<span class="sy3">&amp;&amp;</span> r<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
        <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> Y<span class="sy1">&gt;</span> shared_ptr<span class="br0">(</span>shared_ptr<span class="sy1">&lt;</span>Y<span class="sy1">&gt;</span><span class="sy3">&amp;&amp;</span> r<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
        <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> Y<span class="sy1">&gt;</span> <span class="kw1">explicit</span> shared_ptr<span class="br0">(</span><span class="kw4">const</span> weak_ptr<span class="sy1">&lt;</span>Y<span class="sy1">&gt;</span><span class="sy3">&amp;</span> r<span class="br0">)</span><span class="sy4">;</span>
        <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> Y, <span class="kw1">class</span> D<span class="sy1">&gt;</span> shared_ptr<span class="br0">(</span>unique_ptr<span class="sy1">&lt;</span>Y, D<span class="sy1">&gt;</span><span class="sy3">&amp;&amp;</span> r<span class="br0">)</span><span class="sy4">;</span>
        <span class="kw4">constexpr</span> shared_ptr<span class="br0">(</span>nullptr_t<span class="br0">)</span> <span class="kw1">noexcept</span> <span class="sy4">:</span> shared_ptr<span class="br0">(</span><span class="br0">)</span> <span class="br0">{</span> <span class="br0">}</span>
 
        <span class="co1">// 20.8.2.2.2, destructor:</span>
        ~shared_ptr<span class="br0">(</span><span class="br0">)</span><span class="sy4">;</span>
 
        <span class="co1">// 20.8.2.2.3, assignment:</span>
        shared_ptr<span class="sy3">&amp;</span> operator<span class="sy1">=</span><span class="br0">(</span><span class="kw4">const</span> shared_ptr<span class="sy3">&amp;</span> r<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
        <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> Y<span class="sy1">&gt;</span> shared_ptr<span class="sy3">&amp;</span> operator<span class="sy1">=</span><span class="br0">(</span><span class="kw4">const</span> shared_ptr<span class="sy1">&lt;</span>Y<span class="sy1">&gt;</span><span class="sy3">&amp;</span> r<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
        shared_ptr<span class="sy3">&amp;</span> operator<span class="sy1">=</span><span class="br0">(</span>shared_ptr<span class="sy3">&amp;&amp;</span> r<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
        <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> Y<span class="sy1">&gt;</span> shared_ptr<span class="sy3">&amp;</span> operator<span class="sy1">=</span><span class="br0">(</span>shared_ptr<span class="sy1">&lt;</span>Y<span class="sy1">&gt;</span><span class="sy3">&amp;&amp;</span> r<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
        <span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> Y, <span class="kw1">class</span> D<span class="sy1">&gt;</span> shared_ptr<span class="sy3">&amp;</span> operator<span class="sy1">=</span><span class="br0">(</span>unique_ptr<span class="sy1">&lt;</span>Y, D<span class="sy1">&gt;</span><span class="sy3">&amp;&amp;</span> r<span class="br0">)</span><span class="sy4">;</span>
 
        <span class="co1">// 20.8.2.2.4, modifiers:</span>
        <span class="kw4">void</span> swap<span class="br0">(</span>shared_ptr<span class="sy3">&amp;</span> r<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
        <span class="kw4">void</span> reset<span class="br0">(</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
        <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> Y<span class="sy1">&gt;</span> <span class="kw4">void</span> reset<span class="br0">(</span>Y<span class="sy2">*</span> p<span class="br0">)</span><span class="sy4">;</span>
        <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> Y, <span class="kw1">class</span> D<span class="sy1">&gt;</span> <span class="kw4">void</span> reset<span class="br0">(</span>Y<span class="sy2">*</span> p, D d<span class="br0">)</span><span class="sy4">;</span>
        <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> Y, <span class="kw1">class</span> D, <span class="kw1">class</span> A<span class="sy1">&gt;</span> <span class="kw4">void</span> reset<span class="br0">(</span>Y<span class="sy2">*</span> p, D d, A a<span class="br0">)</span><span class="sy4">;</span>
 
        <span class="co1">// 20.8.2.2.5, observers:</span>
        T<span class="sy2">*</span> get<span class="br0">(</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
        T<span class="sy3">&amp;</span> operator<span class="sy2">*</span><span class="br0">(</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
        T<span class="sy2">*</span> operator<span class="sy2">-</span><span class="sy1">&gt;</span><span class="br0">(</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
        <span class="kw4">long</span> use_count<span class="br0">(</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
        <span class="kw4">bool</span> unique<span class="br0">(</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
        <span class="kw1">explicit</span> operator <span class="kw4">bool</span><span class="br0">(</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
        <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> U<span class="sy1">&gt;</span> <span class="kw4">bool</span> owner_before<span class="br0">(</span>shared_ptr<span class="sy1">&lt;</span>U<span class="sy1">&gt;</span> <span class="kw4">const</span><span class="sy3">&amp;</span> b<span class="br0">)</span> <span class="kw4">const</span><span class="sy4">;</span>
        <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> U<span class="sy1">&gt;</span> <span class="kw4">bool</span> owner_before<span class="br0">(</span>weak_ptr<span class="sy1">&lt;</span>U<span class="sy1">&gt;</span> <span class="kw4">const</span><span class="sy3">&amp;</span> b<span class="br0">)</span> <span class="kw4">const</span><span class="sy4">;</span>
    <span class="br0">}</span><span class="sy4">;</span>
<span class="br0">}</span></pre></div></div>
<h4>
<span class="editsection">[<a href="http%3A//en.cppreference.com/mwiki/index.php" title="Edit section: std::weak ptr">edit</a>]</span> <span class="mw-headline" id="std::weak_ptr"><span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="../memory/weak_ptr.html"><span class="kw589">std::<span class="me2">weak_ptr</span></span></a></span></span></span>
</h4>
<div dir="ltr" class="mw-geshi" style="text-align: left;"><div class="cpp source-cpp"><pre class="de1"><span class="kw1">namespace</span> std <span class="br0">{</span>
    <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span> <span class="kw1">class</span> weak_ptr <span class="br0">{</span>
    <span class="kw1">public</span><span class="sy4">:</span>
        <span class="kw1">typedef</span> T element_type<span class="sy4">;</span>
 
        <span class="co1">// 20.8.2.3.1, constructors</span>
        <span class="kw4">constexpr</span> weak_ptr<span class="br0">(</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
        <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> Y<span class="sy1">&gt;</span> weak_ptr<span class="br0">(</span>shared_ptr<span class="sy1">&lt;</span>Y<span class="sy1">&gt;</span> <span class="kw4">const</span><span class="sy3">&amp;</span> r<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
        weak_ptr<span class="br0">(</span>weak_ptr <span class="kw4">const</span><span class="sy3">&amp;</span> r<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
        <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> Y<span class="sy1">&gt;</span> weak_ptr<span class="br0">(</span>weak_ptr<span class="sy1">&lt;</span>Y<span class="sy1">&gt;</span> <span class="kw4">const</span><span class="sy3">&amp;</span> r<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
        weak_ptr<span class="br0">(</span>weak_ptr<span class="sy3">&amp;&amp;</span> r<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
        <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> Y<span class="sy1">&gt;</span> weak_ptr<span class="br0">(</span>weak_ptr<span class="sy1">&lt;</span>Y<span class="sy1">&gt;</span><span class="sy3">&amp;&amp;</span> r<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
 
        <span class="co1">// 20.8.2.3.2, destructor</span>
        ~weak_ptr<span class="br0">(</span><span class="br0">)</span><span class="sy4">;</span>
 
        <span class="co1">// 20.8.2.3.3, assignment</span>
        weak_ptr<span class="sy3">&amp;</span> operator<span class="sy1">=</span><span class="br0">(</span>weak_ptr <span class="kw4">const</span><span class="sy3">&amp;</span> r<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
        <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> Y<span class="sy1">&gt;</span> weak_ptr<span class="sy3">&amp;</span> operator<span class="sy1">=</span><span class="br0">(</span>weak_ptr<span class="sy1">&lt;</span>Y<span class="sy1">&gt;</span> <span class="kw4">const</span><span class="sy3">&amp;</span> r<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
        <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> Y<span class="sy1">&gt;</span> weak_ptr<span class="sy3">&amp;</span> operator<span class="sy1">=</span><span class="br0">(</span>shared_ptr<span class="sy1">&lt;</span>Y<span class="sy1">&gt;</span> <span class="kw4">const</span><span class="sy3">&amp;</span> r<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
        weak_ptr<span class="sy3">&amp;</span> operator<span class="sy1">=</span><span class="br0">(</span>weak_ptr<span class="sy3">&amp;&amp;</span> r<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
        <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> Y<span class="sy1">&gt;</span> weak_ptr<span class="sy3">&amp;</span> operator<span class="sy1">=</span><span class="br0">(</span>weak_ptr<span class="sy1">&lt;</span>Y<span class="sy1">&gt;</span><span class="sy3">&amp;&amp;</span> r<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
 
        <span class="co1">// 20.8.2.3.4, modifiers</span>
        <span class="kw4">void</span> swap<span class="br0">(</span>weak_ptr<span class="sy3">&amp;</span> r<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
        <span class="kw4">void</span> reset<span class="br0">(</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
 
        <span class="co1">// 20.8.2.3.5, observers</span>
        <span class="kw4">long</span> use_count<span class="br0">(</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
        <span class="kw4">bool</span> expired<span class="br0">(</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
        shared_ptr<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span> lock<span class="br0">(</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
        <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> U<span class="sy1">&gt;</span> <span class="kw4">bool</span> owner_before<span class="br0">(</span>shared_ptr<span class="sy1">&lt;</span>U<span class="sy1">&gt;</span> <span class="kw4">const</span><span class="sy3">&amp;</span> b<span class="br0">)</span> <span class="kw4">const</span><span class="sy4">;</span>
        <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> U<span class="sy1">&gt;</span> <span class="kw4">bool</span> owner_before<span class="br0">(</span>weak_ptr<span class="sy1">&lt;</span>U<span class="sy1">&gt;</span> <span class="kw4">const</span><span class="sy3">&amp;</span> b<span class="br0">)</span> <span class="kw4">const</span><span class="sy4">;</span>
    <span class="br0">}</span><span class="sy4">;</span>
<span class="br0">}</span> <span class="co1">// namespace std</span></pre></div></div>
<h4>
<span class="editsection">[<a href="http%3A//en.cppreference.com/mwiki/index.php" title="Edit section: std::enable shared from this">edit</a>]</span> <span class="mw-headline" id="std::enable_shared_from_this"><span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="../memory/enable_shared_from_this.html"><span class="kw592">std::<span class="me2">enable_shared_from_this</span></span></a></span></span></span>
</h4>
<div dir="ltr" class="mw-geshi" style="text-align: left;"><div class="cpp source-cpp"><pre class="de1"><span class="kw1">namespace</span> std <span class="br0">{</span>
    <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span> <span class="kw1">class</span> enable_shared_from_this <span class="br0">{</span>
    <span class="kw1">protected</span><span class="sy4">:</span>
        <span class="kw4">constexpr</span> enable_shared_from_this<span class="br0">(</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
        enable_shared_from_this<span class="br0">(</span>enable_shared_from_this <span class="kw4">const</span><span class="sy3">&amp;</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
        enable_shared_from_this<span class="sy3">&amp;</span> operator<span class="sy1">=</span><span class="br0">(</span>enable_shared_from_this <span class="kw4">const</span><span class="sy3">&amp;</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
        ~enable_shared_from_this<span class="br0">(</span><span class="br0">)</span><span class="sy4">;</span>
    <span class="kw1">public</span><span class="sy4">:</span>
        shared_ptr<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span> shared_from_this<span class="br0">(</span><span class="br0">)</span><span class="sy4">;</span>
        shared_ptr<span class="sy1">&lt;</span>T <span class="kw4">const</span><span class="sy1">&gt;</span> shared_from_this<span class="br0">(</span><span class="br0">)</span> <span class="kw4">const</span><span class="sy4">;</span>
    <span class="br0">}</span><span class="sy4">;</span>
<span class="br0">}</span> <span class="co1">// namespace std</span></pre></div></div>

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